//
//  UIBarButtonItem + Extension.swift
//  微博
//
//  Created by 武莎莎 on 15/9/10.
//  Copyright © 2015年 itcast. All rights reserved.
//

import UIKit

extension UIBarButtonItem {
    
    convenience init(imageName: String, target: AnyObject?, actionName: String?) {
        let button = UIButton(imageName: imageName)
        
        // 添加监听方法
        if target != nil && actionName != nil {
            button.addTarget(target, action: Selector(actionName!), forControlEvents: UIControlEvents.TouchUpInside)
        }
        
        self.init(customView: button)
    }

}
